Clock.



A. MOGUGAN & H. SPRAGG.

CLOCK.

APPLICATION FILED NOV. 18, 1911.

1,039, 1 65, Patented Sept. 24, 1912.

9% wzmzkea M UNITED STATES PATENT OFFICE.

ARCHIBALD MCGUGAN AND HENRY SPRAGG, OF HAMILTON, ONTARIO, CANADA.

CLOCK.

Application filed November 18, 1911.

1 '0 all whom it may concern:

Be it known that we, ARGHIBALD Mo- GUGAN and HENRY Srnaee, both subjects of the King of Great Britain, and residing at Hamilton, in the county of \Ventworth and Province of Ontario, Canada, have jointly invented new and useful Improvements in Clocks, of which the following is a specification.

Our invention relates to improvements in clocks, and consists of visible means connected therewith, to indicate the time for winding the clock and for winding the alarm of the clock.

The objects of our invention are first to provide means for visibly indicating when the clock should be wound, and should not be wound; second, to provide means for visibly indicating when the alarm mechanism of the clock, should be wound, and should not be wound, thereby avoiding any inadvertent mistake, or confusion.

e attain these objects by the mechanism illustrated in the accompanying drawing, in which Figure 1 is a sectional elevation of a circular casing of a clock, the stationary framework in the clock, together with the main shaftand its spring, and the alarm shaft with its spring, these several parts are not new. Fig. 2 a side elevation of a detached indicator shaft with an adjustable indicating disk thereon, and a worm wheel on the lower end thereof geared into a worm wheel on the rotary alarm shaft of the clock, one end of said shaft being broken away.

Sii'nilar characters of reference refer to similar parts throughout the several views.

In the drawing 1, is the circular casing of a clock, 2, stationary framework in said casing, and rigid therewith, 3, is the main shaft provided with a main coil spring 4, and 5 is the alarm shaft provided with a coil spring 6. The several parts thus far indicated and referred to by numerals, are not new, and are common in clocks of various constructions, and which we do not desire to claim.

Various kinds of mechanism including gear wheels and springs of various kinds for rotating the common shafts 3 and 5, referred to, are used in clocks, and are well known, these we prefer not to show, mention, nor to claim, in order that our invention may be set forth in its simplicity, therefore devoid of complicated combinations of Specification of Letters Patent.

Patented Sept. 24,1912.

Serial No. 660,962.

old systems of wheels and intermediate wheels geared one into the other, and almost numberless, and other well known mechanical elements.

Our invention consists of a suitable hearing or support 8, rigidly secured to the common frame 2 of the clock and at a suitable angle thereto by means of screws 9. 10, is an indicating shaft, adapted to rotate in said bearing, one-half revolution in a period of time, and is provided with a collar 12, to rest on the upper end part of the bearing as a guiding and retaining means for the shaft. The lower end of the shaft 10, is provided with a worm wheel 13, secured thereon, and which gears into the worm wheel 14, which is secured on the common main shaft 3, which rotates the shaft 10, by means of said worm "wheels.

15, is a disk provided with a suitable lower socket 16, adapted to receive the upper end part of the shaft 10 which extends beyond the casing 1, and said disk is adjustably secured to the shaft by means of a suitable screw 17, on the rear side thereof, a similar screw 28 being shown in Fig. 2, of the drawing.

Fig. 2 of the drawing serves to illustrate the indicating shaft 10, together with its indicating disk 15, and its other parts coir nected therewith; also the indicating shaft 20, together with its indicating disk 25, and its other similar parts connected therewith.

18, is a hearing, or support, rigidly secured to the common frame 2, of the clock, and at a suitable angle thereto, by means of screws 19.

20, is an indicating shaft at an angle to the clock, adapted to rotate in said bearing, and adapted to make one-half revolution in a period of time, and is provided with a collar 21, to rest on the upper end part of the bearing, as a guiding and retaining means for the shaft. The lower end of the shaft is provided with a worm wheel 22, secured thereon, and which gears into a worm wheel 23, which is secured on the common alarm shaft- 5, which rotates the shaft 20, by means of said worm wheels.

25, is a disk provided with a suitable l0\ er socket 26, adapted to receive the upper end part of the shaft 20, which extends beyond the casing 1, and said disk is adjustably se cured to the shaft by means of a suitable screw 28, on the rear side thereof and shown in Fig. 2, 0f the drawing.

It is our intention to have the words \Vind clock or the word Clock on the face of the disk 15, and the face of the disk 25, to bear the words Wind alarm or the word Alarm.

The disks 15, and 25, each make one-half revolution in a period of time, and the adjustable mechanism of the disks is, to allow the disks to be adjusted that the faces thereof shall be parallel with the face of the clock, or with the clock, as shown in Fig. 1, when. said disks require to be set, this setting of the disks would be necessary upon the introduction of our invention in a clock.

When the ordinary mechanism of an alarm clock is run down, and therefore ready to be wound, the mechanism comprising our invention is in position, as shown, the disks being parallel one with the other, and with the clock, and readable as shown.

Our invention is adapted for connection with clocks of various makes, and constructions, and which now exist, or to clocks in course of construction, and new clocks, especially to that class of clocks known as alarm clocks.

To place our invention in clocks already made, all that is necessary is to secure the worm wheel 14, on the main shaft 3, or the worm wheel n3, on the alarm shaft 5, the other mechanism connected therewith, as shown and described, may then be easily placed in position.

The main spring shaft 3, and the alarm shaft 5, each make about eight revolutions in twenty four hours, and the worms connected therewith are proportioned in order that the indicating shafts l0 and 20 shall each make one-half revolution in a predetermined period of time.

lVhat we claim as our invention and desire to secure by Letters Patent, is

1. In a clock, a rigid frame, a bearing rigidly secured thereto, an indicating shaft adapted to rotate in the bearing and one end of said shaft extending beyond the com mon casing of the clock, an adjustable indicating disk secured to the extended end of the shaft, a worm wheel secured on the opposite end of the indicating shaft, a worm wheel secured on a common rotating shaft of the clock adapted to gear into the worm wheel on said indicating shaft to rotate the indicating shaft one-half revolution in a period of time.

2. In a clock, a rigid frame, a bearing rigidly secured thereto, an indicating shaft adapted to rotate in said bearing, and one end of the shaft extending beyond the common casing of the clock, an adjustable indicating disk on the extended end of the shaft, a worm wheel secured on a common rotary shaft of the clock adapted to engage with a worm wheel on the opposite end of the indicating shaft, adapted to rotate said indicating shaft one-half revolution in a period of time.

3. In a clock, a rigid frame, a bearing secured thereto, an indicating shaft adapted to rotate in said bearing, means on the shaft to retain the same in operative and rotary position, one end portion of the shaft extending beyond the casing of the clock, an adjustable indicating disk secured to the extending end of the shaft, a rotary shaft of the clock, a worm wheel on said shaft and a worm wheel on the opposite end of the indicating shaft adapted to engage one with the other, whereby the indicating shaft together with the disk may revolve onehalf revolution in a period of time,

ARC/HERALD IVIOGUGAN. HENRY SPRAGG. l'Vitnesses JOHN H. HENDRY, RICHARD BUTLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). 0. 

